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Can Electromagnetic radiation travel through a vacuum at a constant speed regardless of wavelength?
Wiki User
∙ 13y ago
Yes. That is why we see light from distant stars, and use radio telescopes to see even older (more distant) structures. It might be easier to imagine light has having particle properties and wave properties both. Light arrives in discrete packets of energy (particles), yet can be "guided" and "directed" like waves.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoYes!
Sound waves can't - sound needs a medium such as air or water to travel through as the waves are slight changes in pressure in the medium itself.
However electromagnetic waves can travel through a vacuum effectively as streams of particles.
When talking about the speed of light, we usually refer to it's speed in a vacuuum.
If you think about it, if electromagnetic waves didn't travel through a vacuum, we wouldn't be able to see stars and planets with telescopes which rely on the very small visible light portion of the spectrum, and we wouldn't be able to communicate with satellites or Spirit and Opportunity on Mars.
Wiki User
∙ 12y agoElectromagnetic waves travel at the speed of light in a vacuum, which is the the way energy travels from the Sun to the Earth.
Wiki User
∙ 11y agoYes. That speed is called the "speed of light", and it is about 3 x 108 meters/second (300,000 kilometers/second).
Wiki User
∙ 13y agoYes. It's the speed we usually call the 'speed of light',
but it's the same for all electromagnetic radiation.
Wiki User
∙ 13y agoYes.
Wiki User
∙ 14y agoTrue
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Because c the speed of electromagnetic radiation is a constant the wavelength of the radiation is....?
The wavelength is inversely proportional to its frequency. That is, as the frequency increases, the wavelength decreases and vice versa.
What is the wavelength of an electron moving with a velocity of 2.5 x 108 cm s1?
Wavelength = Plancks constant / (Mass x Velocity)
What is the wavelength of a photon with an energy of 3.26 10 19 J?
The wavelength is 610 nm.
What is the energy of a 240 nm ultraviolet photon?
Energy of the photon = Planck's constant x frequency of the ultraviolet radiation E = h x f frequency of the ultraviolet radiation = speed of light / wavelength of the ultraviolet radiation f = c/ lambda E = 6.63 x 10-34 x 3 x 108 / 3 x 10-7 = 6.63 x 10-19 Joules
How energy is directly proportional to frequency?
Maxwell Plank found a direct relationship between the energy of a photon and its freq. This relationship can be expressed as E=h*f, where E is energy, h is Plank's constant and f is frequency. For more info: http://en.wikipedia.org/wiki/Planck\'s_constant wtf -.-
Because c the speed of electromagnetic radiation is a constant the wavelength of the radiation is....?
The wavelength is inversely proportional to its frequency. That is, as the frequency increases, the wavelength decreases and vice versa.
Radiation wavelength becomes longer what happens?
In Electromagnetic radiation when the wavelength increases the energy transmitted by the wave decreases. E=hf where h is a constant and f is the frequency.
How are the wavelength and energy of electromagnetic radiation related?
The energy of one photon is given by its frequency X planck's constant Its frequency is given by the speed of light divided by the wavelength.
How are speeds of electromagnetic radiation frequency and wave length related?
The speed of electromagnetic radiation (light) in a vacuum is a constant, independent of frequency or wavelength. However in a medium (e.g. glass, water, air, diamond) it is no longer a constant, allowing the colors to be separated into a spectrum.
What is the highest energy form of electromagnetic radiation?
Energy is equal to Planck's constant times the speed of light divided by the wavelength of the light. E=h*c / lambda. So the electromagnetic radiation with the largest wavelength will correspond to the lowest energy. Since radio waves have the largest wavelength (about 1,000m) they will have the lowest energy!
Forms of electromagnetic radiation detected by the eye?
Visible light is a very small part of the electromagnetic spectrum. It is characterised by having a wavelength between 4x10-7m and 7x10-7m. The energy carried by a photon is Planck's constant divided by its wavelength.
What is energy that can travel through empty space?
Electromagnetic radiation can travel through "empty" space. Depending on the wavelength of the electromagnetic radiation, we call it "radio" or "microwaves" or "heat" or "light" or "UV" or "X-rays" or even "cosmic rays" - it's all different frequencies of EM radiation. The shorter the wavelength, the higher the frequency; in fact, the frequency times the wavelength is the constant "c", the speed of light.
What is Relation between wavelengths of electromagnetic energy?
Energy = Plank's constant times the speed of light divided by the wavelength of the electromagnetic radiation in question. as a formula: E = h * c / lambda E - energy h - Plank's constant c - speed of light lambda - wavelength
What is the relationship between the wavelength of electromagnetic radiation and the energy of the wave?
The energy of the wavelength w is E=hc/w, where h is Planck's Constant and c is the speed of light; E= .2E-24 Jm/w = 1.25E-6 evm/w.
Which of these is constant for ALL types of electromagnetic radiation in a vacuum?
Answer = Velocity Velocity is the speed of light and, the speed of light, is a constant among Electromagnetic Radiation in the vacuum of space.
Determine the energy and wavelength of a wave with a frequency of 3.6X 1016 hertz Would this be a wave of interest to nuclear medicine?
assuming the wave is electromagnetic... the energy of a single photon of that frequency is given by the formula E=hf where E= energy of the photon h=the Planck constant f= the frequency of the photon From this the energy of the photon is the Planck constant (6.63 x10-34) multiplied by the frequency 3.6x1016 Hz. E= 23.9x10-18 Joules. The wavelength of any wave is determined by the equation wave speed = frequency x wavelength. thus, the wavelength is the wave speed divided by the frequency. since all electromagnetic waves travel at the speed of light then... wavelength = 3x108 / 3.6x1016 wavelength = 0.83x10-8 = 8.3x10-9 metres. The electromagnetic radiation corresponding to this energy and wavelength is ultraviolet radiation and may be of interest to nuclear medicine.
A wave has an energy of 6.63 x 10-18J. What form of electromagnetic radiation is this?
Energy=6.63*10^-18 J Planks constant (h)=6.63*10^-34J/s c=3*10^8 m/s E=(h*c)/wavelength wavelength=(h*c)/E => Wavelength = {(6.6310^-34 )(310^8)}/6.6310^-18 => Wavelength = 3*10^-8 m or 30 nm So wavelength of 30 nm means it lies in Ultraviolet radiation region as it covers region from wavelength of 100 nm to 1nm of electromagnetic radiations.
